California Housing Finance Agency (CalHFA)
The CalHFA ADU Grant Program reimburses up to $40,000 in pre-development and non-recurring closing costs for eligible homeowners constructing an Accessory Dwelling Unit (ADU) on their primary residence. Eligible costs include architectural design, permits, soil tests, and impact fees. As of early 2026, the program is paused due to funding exhaustion, with future rounds possible.
Grant (no repayment); covers pre-development costs only, not construction
877-922-5432
Deadline: Currently paused — check calhfa.ca.gov/adu for future funding
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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